Rivet fasteners after assembly has the same force and never loose fastening properties. Rivet fasteners may be used for general needs bolted or riveted parts. Because of the high tightening force generated by rivet fasteners, never loose, and high shear strength and other properties, rivet fasteners are often used in place of welding. Rivet according to the types of materials can be divided into open type aluminum core pulling rivets, closed aluminum rivets, stainless steel rivets and paint rivets. http://www.lpmaoding.com/